Schematic Reference: Theft Deterrent System Schematics

Important: The factory sets the theft deterrent shock sensor to a middle range of sensitivity. Depending on your area or usage, the factory setting may be too sensitive or not sensitive enough. Make sure that the tamper label on the knob that adjusts the theft deterrent shock sensor is not broken or altered. If the label is broken or altered, the theft deterrent shock sensor may be improperly adjusted to a setting that is less or more sensitive. Refer to Content Theft Deterrent (CTD) Description and Operation .

1

Did you perform the Theft Deterrent Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Theft Deterrent

1. Arm the content theft deterrent (CTD) system. Refer to Content Theft Deterrent (CTD) Description and Operation .
2. Tap the theft deterrent shock sensor.

Does the CTD system activate (alarm)?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step  3

1. Disarm the content theft deterrent (CTD) system. Refer to Content Theft Deterrent (CTD) Description and Operation .
2. Disconnect the theft deterrent shock sensor connector.
3. Connect a test lamp between the battery voltage circuit of the theft deterrent shock sensor and the ground circuit of the theft deterrent shock sensor. Refer to Circuit Testing in Wiring Systems.

Does the test lamp illuminate?

Go to Step 5

Go to Step 4

Connect a test lamp between the battery voltage circuit of the theft deterrent shock sensor and a good ground. Refer to Circuit Testing in Wiring Systems

Does the test lamp illuminate?

Go to Step 7

Go to Step 6

1. Turn ON the Ignition, with the engine OFF.
2. Connect a test lamp between the theft deterrent tamper input circuit of the theft deterrent shock sensor and a good ground. Refer to Circuit Testing in Wiring Systems.

Does the test lamp illuminate?

Go to Step 9

Go to Step 8

Test the battery voltage circuit of the theft deterrent shock sensor for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 9

Test the ground circuit of the theft deterrent shock sensor for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 9

1. Turn OFF the ignition.
2. Test the theft deterrent tamper input circuit of the theft deterrent shock sensor for a short to voltage or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 10

1. Turn OFF the ignition.
2. Inspect for a poor connection at the theft deterrent shock sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 11

Inspect for a poor connection at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 12

Replace the theft deterrent shock sensor. Refer to Shock Sensor Replacement .

Did you complete the replacement?

Go to Step 13

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Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 13

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1. Reconnect any connectors that were disconnected for testing.
2. Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2